CN102857891B - Domain selection method and domain selection system for called party and HSS(home subscriber server) in domain selection system - Google Patents
Domain selection method and domain selection system for called party and HSS(home subscriber server) in domain selection system Download PDFInfo
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- CN102857891B CN102857891B CN201110174976.7A CN201110174976A CN102857891B CN 102857891 B CN102857891 B CN 102857891B CN 201110174976 A CN201110174976 A CN 201110174976A CN 102857891 B CN102857891 B CN 102857891B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/10—Architectures or entities
- H04L65/1016—IP multimedia subsystem [IMS]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1069—Session establishment or de-establishment
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1073—Registration or de-registration
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L65/00—Network arrangements, protocols or services for supporting real-time applications in data packet communication
- H04L65/1066—Session management
- H04L65/1083—In-session procedures
- H04L65/1095—Inter-network session transfer or sharing
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04W—WIRELESS COMMUNICATION NETWORKS
- H04W60/00—Affiliation to network, e.g. registration; Terminating affiliation with the network, e.g. de-registration
- H04W60/005—Multiple registrations, e.g. multihoming
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Abstract
The invention discloses a domain selection method and a domain selection system for the called party and an HSS(home subscriber server) in charging of domain selection. The domain selection method for the called party includes that the HSS acquires calling and session service type which are initiated from a calling party in an IMS(IP multimedia subsystem) domain to the called party, determines registration state and/or terminal type of the called party in the IMS domain, determines the registration state of the called party in a CS (circuit switched) domain by inquiring a home location register HLR, and routes the calling according to determined information including the registration state, the session service type and/or the terminal type of the called party in the IMS domain and the determined information including the registration state of the called party in the CS domain. The HLR is inquired by the HSS which is configured, so that the registration state of the called party in the CS domain can be acquired. Further, according to service type of the calling party, the domain selection method and the domain selection method can solve the technical problem of called selection can be solved well for users register the same number in multiple domains.
Description
Technical field
The application relates to moving communicating field, particularly relates to area selecting method and the system of a kind of called subscriber, and the HSS in system.
Background technology
Voice call continuity service (VCC, Voice Call Continuity) refers to the continuity of audio call between GSM/UMTS circuit switching (CS territory) in the second generation/third generation (2G/3G) mobile radio communication and IP Multimedia System (IMS domain).
Wherein, the subject matter that VCC solves switches, and comprises IMS domain and be switched to CS territory and be switched to IMS domain from CS territory.VCC scheme can have influence on the selection of registration, originating call, terminating call, network domains, and supplementary service and charging etc.; But the territory of VCC is selected to solve the cross-domain problem of voice, and it can not solve the problem of called subscriber's network selection.This problem of usual solution is that SCC AS server (Service Centralization and Continuity Application Server) in the ims domain realizes.Namely according to the method, his all territory business is forwarded to IMS domain, be unified in IMS domain and trigger finishing service logic.Such as, the business datum of user is stored on HSS and relevant AS, and when user is in CS territory, session will carry out trigger business AS by interface to S-CSCF by E-MSC.
Altogether number is the system sharing same set of code number when operator exists multiple core networks, and code number identical in common coding system can be resident in multiple core networks at the same time or separately.Such as, user is signing CS territory and CM-IMS territory simultaneously, and uses duplicate numbers in these two territories.For the user of common number, the problem that existence domain is selected.Such as, CS territory and IMS domain are existed to the user of number altogether, need to solve the land network selection problem of called subscriber in CS territory and IMS domain.
Wherein, fusion one number service based on CM-IMS refers to that user passes through to apply for China Mobile, a mobile phone (GSM mobile handset or TD mobile phone) number or IMS terminal number (Tel URI) are set to the major number of this business, and can arrange to carry out with the phone number in other one to three same provinces (or municipality directly under the Central Government) or IMS terminal number number be binding number when binding outgoing and, binding number during calling, the number bound is as the associated numbers of this business, when realizing outgoing, caller identification is major number (optional), during calling, binding terminal is with shaking or the CS territory of CSC and IMS domain convergence services.
Wherein, an industry business refers to that user uses client to continue original G network service, user uses USB draw-in groove SIM card to be inserted the mobile terminal that client is housed, when user uses customizing SIP terminal to sign in IMS network, original GSM number will be adopted, enjoy main business function signing in GSM network, and USB telephone service server is by the interactive function in circuit domain and IMS domain, completes the business realizing of this business.
But what mainly solve due to VCC is the problem of user speech continuation, when user occurs cross-domain in the process conversed, will be talked about be routed to another territory by VCC application.But, this kind of technical scheme can not solve called fall the problem selected of territory net, and this problem adopts the mode of SCC AS to realize, and process CIMS is complicated; Further, one number service and a row business realizing be only the part of common number, it can not solve the technical problem of the called network selection of common number user completely.
In addition, the LIR/LIA message of Diameter is used to come with HSS at IMS domain I-CSCF mutual, the S-CSCF name of this user of service or the S-CSCF ability of user S-CSCF selection is obtained in SIP converses process of establishing, namely in current IMS domain, I-CSCF CSCF (CSCF, Call Session Control Function) obtains the information of the S-CSCF of this user of service from HSS by LIR/LIA message.
And select in decision logic in common number field, the territory selection of the video traffic of two standby common number user and the territory of speech business is used to select logic to be different, this is video traffic or speech business with regard to the business requiring HSS and can know that active user uses, this be current Diameter LIR/LIA message institute unappeasable, therefore, need to make improvements.
Summary of the invention
The application is for above-mentioned defect of the prior art, area selecting method and the system of a kind of called subscriber are provided, it lands the message of territory instruction by sending the message of carrying business instruction and carrying of returning of HSS to HSS, so realize calling subscriber in the ims domain make a call after the territory select permeability of called subscriber.
According to an aspect of the application, this application provides the area selecting method of a kind of called subscriber, it mainly comprises the following steps:
Home subscriber server HSS knows the calling that IMS domain calling subscriber initiates to called subscriber and session service type;
Described HSS determines the login state of called subscriber in IMS domain;
Described HSS inquires about attaching position register HLR and determines called subscriber's login state in the cs domain; And,
Described HSS according to determined called subscriber the login state of IMS domain, session service type and called subscriber at the login state in CS territory, call out described in route.
Wherein, call out described in described HSS route, comprise further:
Described HSS inquires about network selection policy database;
According to called subscriber in the login state of IMS domain, session service type and the login state of called subscriber in the CS territory territory of landing from selective call among network selection policy database.
According to another aspect of the application, the invention provides the domain selecting system of a kind of called subscriber, comprise: home subscriber server HSS and attaching position register HLR, wherein, described HSS obtains IMS domain calling subscriber and makes a call and session service type to called subscriber; Described HSS determines the login state of called subscriber in IMS domain; Described HSS inquires about attaching position register HLR and determines called subscriber's login state in the cs domain; And, described HSS according to determined called subscriber the login state of IMS domain, session service type and called subscriber at the login state in CS territory, call out described in route.
Wherein, comprise further: network selection policy database, described HSS selects according to called subscriber at the login state of IMS domain, session service type and the login state of called subscriber in CS territory and determines the territory of landing of session among network selection policy database.
Wherein, comprise further: CSCF CSCF, described CSCF is according to the session request determination session service type of the calling subscriber received and send LIR message to HSS, and determines according to the LIA message that HSS returns and transfer the call to land among territory.
Wherein, comprise further: MGCF MGCF, described CSCF sends route instruction to described MGCF, according to above-mentioned instruction, MGCF notifies that called subscriber answers the call in CS territory.
According to another aspect of the application, the invention provides a kind of home subscriber server HSS, comprising: determination module and routing selecting module, wherein,
Described determination module, when IMS domain calling subscriber makes a call to called subscriber, determine called subscriber's login state in the ims domain and the session service type of calling subscriber, and inquire about to determine the login state of called subscriber in CS territory to attaching position register HLR;
Described routing selecting module, according to the session service type of the login state of called subscriber in CS territory, calling subscriber and called subscriber at the login state of IMS domain, calls out described in route.
Wherein, described determination module comprises further:
Information receiving unit, for receiving from the LIA message with type of service instruction among CSCF, determines the session service type of calling subscriber;
Query unit, for sending query messages to described HLR;
Determining unit, according to the acknowledge message received from described HLR, determines the login state in CS territory of called subscriber.
Wherein, described routing selecting module comprises further:
Route judging unit, according to determined called subscriber the login state in CS territory, the type of service of calling subscriber and called subscriber at the login state of IMS domain, judge routing mode;
Route indicating member, according to judged routing mode, sends described in LIA message instruction CSCF route to CSCF and calls out.
The present invention is after taking technique scheme, HLR can be inquired about by home subscriber server HSS and obtain called subscriber's login state in the cs domain, called subscriber's login state in the ims domain and/or terminal type is obtained by HSS, and, in conjunction with the type of service of the calling subscriber that HSS obtains, can according to its login state in CS/IMS territory and/or terminal type, realizing transferring the call to according to network selection strategy default lands among territory, and then solve the technical problem that multiple domain registers the called network selection of the user of jack per line preferably, there is extraordinary technique effect.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is described in detail, to make above-mentioned advantage of the present invention definitely.
Fig. 1 is the flow chart of the embodiment of the area selecting method of called subscriber of the present invention;
Fig. 2 is the flow chart of another embodiment of the area selecting method of called subscriber of the present invention;
Fig. 3 is the frame structure schematic diagram of the embodiment of called subscriber's domain selecting system of the present invention;
Fig. 4 is the module diagram of the embodiment of home subscriber server HSS of the present invention;
Fig. 5 is the module diagram of the embodiment of the HSS of home subscriber of the present invention service;
Fig. 6 is the module diagram of the embodiment of the HSS of home subscriber of the present invention service.
Embodiment
Below in conjunction with specific embodiment, description detailed is further carried out to the present invention.
(embodiment one)
Fig. 1 is the flow chart of the embodiment of the area selecting method of called subscriber of the present invention;
Which basically illustrate when initiating the call request of certain business at the calls customer end subscriber of IMS domain, system determines according to the type of service of caller the method flow that the territory of called subscriber is selected.
As shown in the figure, the method mainly comprises following key step:
S101: home subscriber server HSS knows the calling that IMS domain calling subscriber initiates to called subscriber and session service type; Usually, this session service type can be speech business, video traffic, data service, facsimile service, also the expansion of miscellaneous service can be carried out according to later business development, wherein, among a preferred embodiment, session service controlling functions CSCF in IMS domain receive calling subscriber initiate Invite message, and according to this message determine calling subscriber's (client) institute will to called subscriber initiation session service type.
S102: described HSS determines the login state of called subscriber in IMS domain;
Here, be understandable that, HSS can determine the login state of called subscriber in IMS domain by the registration status information of the IMS domain terminal that inquiry stores self.
S103: described HSS inquires about attaching position register HLR determines called subscriber's login state in the cs domain; Wherein, among a preferred embodiment, described HSS sends query messages to described attaching position register HLR, such as, HSS increases by one with the MAP interface of HLR intercommunication, described HSS is communicated mutually with HSS by this MAP interface.
Wherein, described HLR returns acknowledge message to HSS in response to described query messages;
Further, in described acknowledge message, carry the registration status information of called subscriber in CS territory, such as, called subscriber register in the cs domain or, called subscriber does not register in the cs domain;
Then, described HSS, according to the acknowledge message received from described HLR, determines the login state of called subscriber in CS territory.
S104: described HSS according to determined called subscriber the login state of IMS domain, session service type and called subscriber at the login state in CS territory, call out described in route.
Wherein, among a preferred embodiment, be also provided with a network selection policy database, wherein, among database, operator or User Defined be provided with one group or many group network selection logic strategies:
Such as, for speech business, if user registers in CS territory or IMS domain, then speech business is forwarded among CS territory; If related service is registered in the ims domain, and have not yet registered in the cs domain, then speech business is transferred among IMS domain;
In like manner, for data service, video traffic, facsimile service, similar logic strategy can be done; Further, among this network selection policy database, leave the interface of some expansions also can to following activating business, if user has special business in follow-up, the subsequent expansion of business can be carried out more fasterly; Such as, described HSS obtains current network condition, and then according in conjunction with this secondary cause of network condition, carrying out network selection in conjunction with above-mentioned ground field selection factor.
Now, described HSS inquires about network selection policy database;
According to called subscriber in the login state of IMS domain, session service type and the login state of called subscriber in the CS territory territory of landing from selective call among network selection policy database.
Further, if operator or user think the territory select permeability also having other acquisition elements affect HSS, we can, by the logic strategy of change data store internal, make it meet the demand of operator.
Wherein, among step S101, described HSS knows that the concrete steps of the session service type that IMS domain calling subscriber initiates to called subscriber comprise:
Session service controlling functions CSCF receives the session request that in IMS domain, calling subscriber initiates;
Described CSCF generates LIR information and sending with traffic indicator bit to HSS according to above-mentioned session request; And described HSS receives described LIR message and determines session service type.
Such as, session service controlling functions CSCF in IMS domain receives the Invite message that calling subscriber initiates, and send with the LIR message of session service instruction to HSS, and determine and transfer the call to land among territory according to the LIA message with territory instruction that HSS returns.
Due among current IMS domain, I-CSCF obtains the information of the S-CSCF of this user of service from HSS by LIR/LIA message.Therefore, in order to realize can identifying current session service type between the LIR/LIA between HSS and CSCF and land territory instruction, must expand for the LIR/LIA message of existing Diameter, making it with the service identification of user.
Such as, among a specific embodiment, the present invention adds traffic flag extended field among the LIR message of Diameter:
[Session-Type] // type of service
*[AVP]
*[Proxy-Info]
*[Route-Record]
[Session-Type] field is wherein extended field, type of service instruction will be carried, its value is Voice, Video, Data, Fax or Extand, the session service type representing current calling subscriber be respectively speech business, video traffic, data service, facsimile service or other.
Among this embodiment, LIA message equally also adds lands territory indication extension field:
Veer before [Session-Result] // session
*[AVP]
*[Failed-AVP]
*[Proxy-Info]
*[Route-Record]
[Session-Result] field is wherein extended field, and will carry type of service instruction, its value is CS, IMS, Both and Extand, represent CS that called subscriber will turn to respectively and land territory, IMS and land territory or dual domain and land, and, some other situation.
Further, further, the step of calling out described in described HSS route comprises further:
Described HSS determines the territory of landing of calling out; Described HSS generates and returns to CSCF with landing the LIA message of territory indicating bit; And described CSCF is in response to described LIA message, and that determines to call out lands territory, and transfer the call to determine land among territory.
Among preferred embodiment, the Selective type in territory of landing is CS territory, IMS domain, these three kinds of situations of IMS/CS dual domain.Wherein, described CSCF transfers the call among CS territory and comprises further:
Described CSCF sends the message with territory instruction to MGCF MGCF;
In response to described message, described MGCF receives described message, and notifies that called subscriber answers the call in CS territory.Among a preferred embodiment, when transferring the call among CS territory described in described HSS determines, described CSCF sends the message with territory instruction to MGCF MGCF, such as, the message of Invite (PreA, B) form, wherein, PreA suppresses HLR to carry out territory selection logic, walks normal CS territory flow process.
If described HSS determines that CSCF transfers the call among IMS domain, then described HSS generates and lands the LIA message of territory indicating bit with IMS and return to CSCF; And described CSCF, in response to described LIA message, continues normal follow-up flow process.
If described HSS determines that CSCF transfers the call among IMS and CS dual domain, now, described CSCF receive with IMS/CS dual domain land territory instruction LIA message; Then, according to above-mentioned LIA message, described CSCF triggers one number service AS and realizes the same of one number service and shakes or suitable shake business.
The present invention is after taking technique scheme, because described HSS can be video traffic or speech business according to the call business in current calling subscriber, and then select according to network selection policy database, owing to can define for various carrier policy according to operator or user oneself among network selection policy database, and, this strategy can also be expanded according to follow-up change, in addition, realizing transferring the call to according to network selection strategy default lands among territory, and then solve the technical problem that multiple domain registers the called network selection of the user of jack per line preferably, there is extraordinary technique effect.
(embodiment two)
Fig. 2 is the flow chart of another embodiment of the area selecting method of called subscriber of the present invention.
Difference between this flow chart and Fig. 1 is,
Described HSS is when acquisition user registration state, and further comprises the step of the endpoint registration type obtaining called subscriber, specifically, it comprises following step:
S201: home subscriber server HSS knows the calling that IMS domain calling subscriber initiates to called subscriber and session service type:
Similar with embodiment one, this session service type can be speech business, video traffic, data service, facsimile service, also can carry out the expansion of miscellaneous service according to later business development;
And, among a preferred embodiment, session service controlling functions CSCF in IMS domain receive calling subscriber initiate Invite message, and according to this message determine calling subscriber's (client) institute will to called subscriber initiation session service type.
S202: described HSS determines the login state of called subscriber in IMS domain, simultaneously, the database that described HSS inquires about self determines the terminal type of called subscriber, and usually, this terminal type is brought up by NAS signaling when user registers and is stored among HSS.
S203: described HSS inquires about attaching position register HLR determines called subscriber's login state in the cs domain; Wherein, among a preferred embodiment, described HSS sends query messages to described attaching position register HLR, such as, HSS increases by one with the MAP interface of HLR intercommunication, by above-mentioned interface, described HSS can inquire about the login state of the user stored in HSS.
Described HLR is in response to described query messages and return acknowledge message to HSS, wherein, carries the registration status information of called subscriber in CS territory in described acknowledge message, such as, called subscriber register in the cs domain or, called subscriber does not register in the cs domain.Then, described HSS, according to the acknowledge message received from described HLR, determines the login state of called subscriber in CS territory.
S204: described HSS according to determined called subscriber at the terminal type of the login state of IMS domain, session service type, called subscriber and login state in the cs domain, call out described in route.
Wherein, among a preferred embodiment, be also provided with a network selection policy database, wherein, among database, operator or User Defined be provided with one group or many group network selection logic strategies.
Such as, for when singly treating terminal during called user terminal, when calling service is speech business calling, if it is registered at the login state in CS territory, and when the login state of IMS domain is unregistered, described HSS will route the call to CS territory continuing called subscriber;
If it is unregistered at the login state in CS territory, and when the login state of the speech business of IMS domain is registered, described HSS will route the call to IMS domain continuing called subscriber;
If it is not all registered in CS territory and IMS domain, then described HSS will not carry out route, this time to this calling, described HSS can subscriber call called unregistered.
Because video traffic is not supported in general CS territory, therefore, for singly treating terminal use, if time calling service is video traffic calling:
If it is registered in the ims domain, then transfer the call in IMS domain and carry out normal service call; If it is not registered in the ims domain, and registered in the cs domain, then usually, system can carry out audio frequency falling to above-mentioned video traffic, notifies that called subscriber answers session in the cs domain.
The same with embodiment, can also comprise: described HSS inquires about network selection policy database; Then, according to called subscriber in the login state of IMS domain and terminal type, session service type and the login state of called subscriber in the CS territory territory of landing from selective call among network selection policy database.
Other basic steps can refer to described by the method for embodiment one, and its basic step and principle are all similar, do not repeat them here.
The present invention, after taking technique scheme, because described HSS can be video traffic or speech business according to the call business in current calling subscriber, and then selects according to subscriber policy database, has territory and select technological merit easily; Further, it further defines the terminal type of called subscriber when carrying out called subscriber's inquiry, and then completes the network selection business of system in conjunction with the terminal type of called subscriber, and then solves the technical problem of the called network selection of user of multiple domain registration jack per line.
(embodiment three)
Fig. 3 is the frame structure schematic diagram of the embodiment of called subscriber's domain selecting system of the present invention;
As shown in the figure, among this preferred embodiment, the domain selecting system of called subscriber, comprise, a home subscriber server HSS100 and attaching position register HLR300 and network selection policy database 200, wherein, the calling subscriber that described HSS100 obtains in IMS domain makes a call and session service type to called subscriber;
Simultaneously, described HSS100 determines the login state of called subscriber in IMS domain, and, the MAP interface of communication is mutually provided with between described HSS100 and HLR300, wherein, described HSS sends query messages to described attaching position register HLR300, and, described HLR300 in response to described query messages, and determines called subscriber's login state in the cs domain;
Then, described HSS100 inquires about described network selection policy database 200, according to determined called subscriber the login state of IMS domain, session service type and called subscriber at the login state in CS territory, call out described in route.
Corresponding with the method for embodiment two, among another embodiment, described HSS100 determines the terminal type of called subscriber, then, described HSS100 inquires about described network selection policy database 200, according to determined called subscriber the login state of IMS domain, terminal type, session service type and called subscriber at the login state in CS territory, call out described in route.
Further, described network selection policy database 200 can customize assembly, such as, for speech business, if user registers in CS territory or IMS domain, then can define logic and speech business be forwarded among CS territory; If related service is registered in the ims domain, and have not yet registered in the cs domain, then can define logic is transferred among IMS domain by speech business;
Further, among this network selection policy database, user or operator leave the interface of some expansions can also to following activating business, if user has special business in follow-up, can carry out the subsequent expansion of business more fasterly; Such as, can also define in conjunction with current network condition, the logic strategy etc. of setting network selection.
The type of service of the caller of IMS domain is obtained in order to realize described HSS100, this system comprises CSCF CSCF400 further, wherein, described CSCF is according to the session request determination session service type of the calling subscriber received, such as, session service controlling functions CSCF in IMS domain receives the Invite message that calling subscriber initiates, and send with the LIR message of session service instruction to HSS100, and determine and transfer the call to land among territory according to the LIA message with territory instruction that HSS100 returns.
Due among current IMS domain, I-CSCF obtains the information of the S-CSCF of this user of service from HSS by LIR/LIA message.Therefore, in order to realize can identifying current session service type between the LIR/LIA between HSS and CSCF and land territory instruction, must expand for the LIR/LIA message of existing Diameter, making it with the service identification of user.
Such as, among a specific embodiment, the present invention adds traffic flag extended field among the LIR message of Diameter:
[Session-Type] // type of service
*[AVP]
*[Proxy-Info]
*[Route-Record]
[Session-Type] field is wherein extended field, type of service instruction will be carried, its value is Voice, Video, Data, Fax or Extand, the session service type representing current calling subscriber be respectively speech business, video traffic, data service, facsimile service or other.
Among this embodiment, LIA message equally also adds lands territory indication extension field:
Veer before [Session-Result] // session
*[AVP]
*[Failed-AVP]
*[Proxy-Info]
*[Route-Record]
[Session-Result] field is wherein extended field, and will carry type of service instruction, its value is CS, IMS, Both and Extand, represent CS that called subscriber will turn to respectively and land territory, IMS and land territory or dual domain and land, and, some other situation.
After above-mentioned process, described HSS100 determines the territory of landing of calling out; Then, described HSS100 generates and returns to CSCF400 with landing the LIA message of territory indicating bit; In response to described LIA message, what described CSCF400 determined to call out lands territory, and transfer the call to determine land among territory; Further, among this preferred embodiment, described in land territory be CS territory or IMS domain or IMS/CS dual domain.
As shown in Figure 3, described called domain selecting system also includes, mobile switching center server MSC S600 and MGCF MGCF500, wherein, when transferring the call among CS territory described in described HSS100 determines, described CSCF400 sends the message with territory instruction to MGCF MGCF500, such as, and Invite (PreA, B) message of form, wherein, PreA suppresses HLR to carry out territory selection logic, walks normal CS territory flow process.
If described HSS100 determines that CSCF400 transfers the call among IMS domain, then described HSS generates and lands the LIA message of territory indicating bit with IMS and return to CSCF400; And in response to described LIA message, described CSCF continues normal follow-up flow process.
If described HSS determines that CSCF transfers the call among IMS and CS dual domain, now, described CSCF400 receive with IMS/CS dual domain land territory instruction LIA message; Then, according to above-mentioned LIA message, described CSCF triggers one number service AS and realizes the same of one number service and shakes or suitable shake business.
Further, this system goes among embodiment two equally, and namely described HSS is according to determined called subscriber at the terminal type of the login state of IMS domain, session service type, called subscriber and login state in the cs domain, calls out described in route.Its module realizing above-mentioned functions goes among native system equally, does not repeat them here.
(embodiment four)
Fig. 4 is the module diagram of the embodiment of home subscriber server HSS of the present invention;
As shown in Figure 4, described home subscriber server HSS100, mainly comprise, determination module 101 and routing selecting module 102, wherein, described determination module 101, when IMS domain calling subscriber makes a call to called subscriber, determine called subscriber's login state in the ims domain and the session service type of calling subscriber, and inquire about to determine the login state of called subscriber in CS territory to attaching position register HLR;
Described routing selecting module 102, according to the session service type of the login state of called subscriber in CS territory, calling subscriber and called subscriber at the login state of IMS domain, calls out described in route.
Fig. 5 is the module diagram of the embodiment of the HSS of home subscriber of the present invention service;
As shown in the figure, described determination module 101 comprises further: information receiving unit 1013, for receiving from the LIA message with type of service instruction among CSCF, determines the session service type of calling subscriber; Query unit 1011, for sending query messages to described HLR; Determining unit 1012, according to the acknowledge message received from described HSS, determines the login state in CS territory of called subscriber.
Fig. 6 is the module diagram of the embodiment of the HSS of home subscriber of the present invention service;
As shown in the figure, described routing selecting module 102 comprises further:
Route judging unit 1011, according to determined called subscriber the login state in CS territory, the type of service of calling subscriber and called subscriber at the login state of IMS domain, judge routing mode;
Route indicating member 1012, according to judged routing mode, sends described in LIA message instruction CSCF route to CSCF and calls out.
Described route indicating member comprises further: message generation subelement, for according to determined routing state, generates the LIA message with selecting instruction for territory; And message sends subelement, described LIA message is sent among CSCF.
It will be appreciated that, CSCF realize receiving calling subscriber calling, generate LIR message, receive LIA message and relayed call, it can by realizing the Implement of Function Module of said method, and, these modules can replace with existing I-CSCF or P-CSCF or S-CSCF and realize corresponding function, although these functional modules are not embodied among this patent, these are all that those skilled in the art can understand, and do not repeat them here.
One of ordinary skill in the art will appreciate that: all or part of step realizing said method embodiment can have been come by the hardware that program command is relevant, aforesaid program can be stored in read/write memory medium, this program, when performing, performs the step comprising said method embodiment; And aforesaid storage medium comprises: ROM, RAM, magnetic disc, CD, intelligent platform, switch etc. various can be program code stored medium.
It should be noted that; above-mentioned specific embodiment is only exemplary; under above-mentioned instruction of the present invention, those skilled in the art can carry out various improvement and distortion on the basis of above-described embodiment, and these improve or distortion drops in protection scope of the present invention.
It will be understood by those skilled in the art that specific descriptions are above to explain object of the present invention, not for limiting the present invention.Protection scope of the present invention is by claim and equivalents thereof.
Claims (11)
1. a called subscriber's area selecting method, is characterized in that, comprising:
Home subscriber server HSS knows the calling that IMS domain calling subscriber initiates to called subscriber and session service type, and described session service type comprises CS business;
Described HSS determines the login state of called subscriber in IMS domain;
Described HSS inquires about attaching position register HLR and determines called subscriber's login state in the cs domain; And,
Described HSS according to determined called subscriber the login state of IMS domain, session service type and called subscriber at the login state in CS territory, call out described in route;
Call out described in described HSS route, comprise further:
Described HSS inquires about network selection policy database;
According to called subscriber in the login state of IMS domain, session service type and the login state of called subscriber in the CS territory territory of landing from selective call among network selection policy database, described in land territory and comprise IMS/CS dual domain;
Described HSS according to determined called subscriber the login state of IMS domain, session service type and called subscriber when calling out described in the login state route in CS territory, HSS also calls out simultaneously according to the terminal type route of called subscriber.
2. the area selecting method of called subscriber according to claim 1, is characterized in that, described HSS knows that the session service type that IMS domain calling subscriber initiates to called subscriber comprises:
Session service controlling functions CSCF receives the session request that in IMS domain, calling subscriber initiates;
Described CSCF generates LIR information and sending with traffic indicator bit to HSS according to above-mentioned session request; And described HSS receives described LIR message and determines session service type.
3. the area selecting method of called subscriber according to claim 1, is characterized in that, described HSS inquires about HLR and determines that called subscriber's login state in the cs domain comprises:
Described HSS sends query messages to described HLR;
Described HLR responds described query messages, returns acknowledge message to described HSS, wherein, carries the registration status information of called subscriber in CS territory in described acknowledge message; And,
Described HSS, according to the acknowledge message received from described HLR, determines the login state of called subscriber in CS territory.
4. the area selecting method of called subscriber according to claim 1, is characterized in that, calls out and comprise further described in described HSS route:
Described HSS determines the territory of landing of calling out;
Described HSS generates and returns to CSCF with landing the LIA message of territory indicating bit; And,
Described CSCF responds described LIA message, and that determines to call out lands territory, and transfer the call to determine land among territory.
5. the area selecting method of called subscriber according to claim 1, is characterized in that, CSCF transfers the call among CS territory and comprises further:
Described CSCF sends the message with territory instruction to MGCF MGCF;
Described MGCF receives described message, notifies that called subscriber answers the call in CS territory.
6. the area selecting method of called subscriber according to claim 1, is characterized in that, CSCF transfers the call among IMS/CS dual domain and comprises further:
Described CSCF receive with IMS/CS dual domain land territory instruction LIA message;
According to above-mentioned LIA message, described CSCF triggers one number service AS.
7. a home subscriber server HSS, comprising:
Determination module and routing selecting module, wherein,
Described determination module, when IMS domain calling subscriber makes a call to called subscriber, determine called subscriber's login state in the ims domain and the session service type of calling subscriber, and inquire about to attaching position register HLR to determine the login state of called subscriber in CS territory, described session service type comprises CS business;
Described routing selecting module, is called out described in route at the login state of IMS domain according to the session service type of the login state of called subscriber in CS territory, calling subscriber and called subscriber, and the territory of landing that calling is selected comprises IMS/CS dual domain;
Described determination module comprises further:
Information receiving unit, for receiving from the LIA message with type of service instruction among CSCF, determines the session service type of calling subscriber;
Query unit, for sending query messages to described HLR;
Determining unit, according to the acknowledge message received from described HLR, determines the login state in CS territory of called subscriber;
Described routing selecting module comprises further:
Route judging unit, according to determined called subscriber the login state in CS territory, the type of service of calling subscriber and called subscriber at the login state of IMS domain, judge routing mode;
Route indicating member, according to judged routing mode, sends described in LIA message instruction CSCF route to CSCF and calls out.
8. home subscriber server HSS according to claim 7, is characterized in that, described route indicating member comprises further:
Message generation unit, for according to determined routing state, generates the LIA message with selecting instruction for territory; And message sending unit, sends to described LIA message among CSCF.
9. a called subscriber's domain selecting system, comprises home subscriber server HSS and attaching position register HLR, it is characterized in that, described HSS obtains IMS domain calling subscriber and makes a call and session service type to called subscriber; Described HSS determines the login state of called subscriber in IMS domain; Described HSS inquires about attaching position register HLR and determines called subscriber's login state in the cs domain; And, described HSS according to determined called subscriber the login state of IMS domain, session service type and called subscriber at the login state in CS territory, call out described in route, described session service type comprises CS business;
Comprise further: network selection policy database, described HSS selects according to called subscriber at the login state of IMS domain, session service type and the login state of called subscriber in CS territory and determines the territory of landing of session among network selection policy database, described in land territory and comprise IMS/CS dual domain.
10. the domain selecting system of called subscriber according to claim 9, it is characterized in that, comprise further: CSCF CSCF, described CSCF is according to the session request determination session service type of the calling subscriber received and send LIR message to HSS, and determines according to the LIA message that HSS returns and make calling transfer to land among territory.
The domain selecting system of 11. called subscribers according to claim 10, it is characterized in that, comprise further: MGCF MGCF, described CSCF sends route instruction to described MGCF, according to above-mentioned instruction, MGCS notifies that called subscriber answers the call in CS territory.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110174976.7A CN102857891B (en) | 2011-06-27 | 2011-06-27 | Domain selection method and domain selection system for called party and HSS(home subscriber server) in domain selection system |
| PCT/CN2012/077533 WO2013000398A1 (en) | 2011-06-27 | 2012-06-26 | Domain selection method and system for called users, and home subscriber server (hss) in system, computer program and storage medium |
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| CN201110174976.7A CN102857891B (en) | 2011-06-27 | 2011-06-27 | Domain selection method and domain selection system for called party and HSS(home subscriber server) in domain selection system |
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